SIRIS, ALTO, and NAS: After updating the Datto Linux Agent, backups fail and dlad service won't start



After upgrading a Datto Linux Agent installation from version 1.0 to 2.0, backups fail, and the dlad service on the protected machine is unable to start.


  • Datto Linux Agent


An out-of-date version of gnutls is preventing the service from starting.


Verify the issue

From a Linux command prompt on the protected machine, type sudo /usr/sbin/dlad -d. You should see the following error message:

[CRITICAL:] HTTP server failed to start with err: 0

If you don't see the above error, search the Datto Knowledge Base for the error that the command returned, or contact Datto Technical Support for further assistance.

Resolve the issue

Once you've verified the error, update the gnutls package to the latest version for your Linux distribution.

Datto has not determined how many distributions of Linux or versions of gnutls will experience this issue. If you see "HTTP server failed to start with err: 0" after running dlad -d, you should update the gnutls package as a first step.

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